Method Image.Fonts.Font()->text_extents()
- Method text_extents
 array(int) text_extents(string...lines)- Description
 Returns ({ xsize, ysize }) of the image that will result if
linesis sent as the argument to write.
array(int) text_extents(string ...  lines)
Returns ({ xsize, ysize }) of the image that will result if
 lines is sent as the argument to write.